Jobs at Djinni

10030
  • Β· 450 views Β· 146 applications Β· 6d

    Middle QA Engineer

    Countries of Europe or Ukraine Β· 2 years of experience Β· English - B2
    We are looking for a proactive and self-driven Middle QA Engineer to join our team. The ideal candidate is comfortable working on different types of projects and technology stacks and is passionate about ensuring the highest product quality. You will...

    We are looking for a proactive and self-driven Middle QA Engineer to join our team. The ideal candidate is comfortable working on different types of projects and technology stacks and is passionate about ensuring the highest product quality.
    You will collaborate closely with developers and clients to create seamless and positive user experiences in the solutions we build for our clients. πŸš€

    Key Responsibilities:
    β€’ Perform thorough testing of web and mobile applications, including UI/UX, functional, and cross-browser testing;
    β€’ Design and execute comprehensive test cases for complex backend logic, REST APIs, and database operations;
    β€’ Work extensively with various data stores (SQL, e.g., PostgreSQL, and NoSQL) to ensure data integrity, validate data transformations, and perform complex queries for testing purposes;
    β€’ Take responsibility for ensuring high-quality deliverables within assigned projects;
    β€’ Write clear and detailed bug reports, perform root cause analysis by investigating logs, and trace issues across different system layers;
    β€’ Work with the development team and clients to clarify requirements, discuss testing strategies, and report on results;
    β€’ Actively participate in the development lifecycle (planning sessions, daily syncs, retrospectives).

    Requirements:
    β€’ 2+ years of commercial experience as a QA Engineer;
    β€’ Strong practical experience in API testing (REST) and a deep understanding of its principles;
    β€’ Experience with browser DevTools and web debugging proxies (e.g., Charles, Fiddler);
    β€’ Solid understanding of HTML, CSS, and basic JavaScript;
    β€’ Confident written and spoken English (B2 level or above);
    β€’ Strong analytical and problem-solving skills, with the ability to manage tasks independently and handle multiple priorities.

    Would be a plus:
    β€’ Experience with test automation using frameworks like Cypress or Playwright with TypeScript/JavaScript.
    β€’ Experience with performance testing (e.g., JMeter, k6) and analyzing metrics (e.g., Grafana, AWS services).
    β€’ Advanced proficiency with Postman, including creating and managing complex collections, using variables, and writing test scripts (JavaScript).
    β€’ Strong SQL skills (PostgreSQL preferred) with the ability to write complex queries for data validation and manipulation.
    β€’ Proficiency in a scripting language (e.g., JavaScript, Python) for test data generation or task automation.
    β€’ Basic knowledge of web security testing principles and tools (e.g., OWASP ZAP).

    We offer:
    β€’ Transparent financial motivation;
    β€’ Remote workplace or a comfortable office in the center of Kyiv;
    β€’ 18 working days of paid leave annually;
    β€’ Unlimited sick days;
    β€’ Salary review twice a year;
    β€’ Compensation for our English-speaking club β€” 100%;
    β€’ Compensation for any AI tool of your choice β€” 100%;
    β€’ Compensation for coworking spaces β€” 100%;
    β€’ Compensation for gym memberships and professional courses β€” 50% (after the trial period);
    β€’ Compensation for any English courses β€” 50% (after the trial period);
    β€’ Compensation for sessions with a psychologist β€” 50% (after the trial period);
    β€’ Medical insurance (after the trial period).

    Interview Stages:
    Screening Interview ➑️ Technical Interview ➑️ Job Offer

    If you have the skills, passion, and determination we’re looking for, apply now to become part of our exciting journey ⭐️

     

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  • Β· 72 views Β· 19 applications Β· 6d

    Senior Full Stack Node.js Developer

    Full Remote Β· Ukraine Β· 5 years of experience Β· English - B2
    Check Point is looking for Senior Full Stack Node.js Engineer to team in the network security field, striving to provide the leading SASE platform in the market. Our innovative approach, merging cloud and on-device protection, redefines how businesses...

    Check Point is looking for Senior Full Stack Node.js Engineer to team in the network security field, striving to provide the leading SASE platform in the market. Our innovative approach, merging cloud and on-device protection, redefines how businesses connect in the era of cloud and remote work. Our team values collaboration, flawless execution, and an agile mindset. We offer continuous learning opportunities, including access to training programs, conferences, and workshops to help you grow professionally.

    Join us and be part of a team that values innovation, collaboration, and excellence in cybersecurity!

     

    RESPONSIBILITIES

    • Take ownership of the end-to-end development process for software components/services, including research, design, development, testing, rollout, and monitoring.
    • Contribute to key technological and architectural decisions to drive innovation and scalability.
    • Mentor and guide other engineers within the team through activities such as code reviews, dedicated sessions, and pair programming.
    • Analyze and enhance the efficiency, scalability, and stability of various system components.
    • Collaborate closely with Designers, Product Managers, and Software Engineers to ensure the delivery of high-quality products to our customers.

     

    SKILLS

    • 5+ years extensive experience with Node.js/React/TypeScript.
    • Proven track record of designing and building native-cloud web applications from scratch on AWS.
    • Strong understanding of microservice architecture, including serverless (lambda).
    • Experience working in Agile scrum teams.
    • Solid grasp of design patterns, software development techniques, and clean code practices.
    • A team player with a proactive and can-do approach.
    • Experience with Test-Driven Development (TDD) and Behavior-Driven Development (BDD) is a plus.
    • Bachelor’s degree in computer science/engineering.
    • Upper-Intermediate level of English.

     

    WE OFFER

    • Work in a creative friendly environment using cutting-edge technologies.
    • Work-life balance and flexible schedule.
    • Competitive compensation with focus on your expectations; annual salary review.
    • 24-day paid vacation and 100% paid sick leave.
    • Professional, language and soft skills trainings.
    • Health insurance coverage: individual and family, Fitness plan.
    More
  • Β· 29 views Β· 6 applications Β· 6d

    Sr Kotlin multiplatform developer

    Full Remote Β· Countries of Europe or Ukraine Β· 5 years of experience Β· English - B2
    About the project: We are finalizing a Telehealth platform designed to bridge the gap between doctors and patients. Our goal is to provide a seamless, secure, and accessible medical experience. We are currently in the critical phase of preparing our...

    About the project:

    We are finalizing a Telehealth platform designed to bridge the gap between doctors and patients. Our goal is to provide a seamless, secure, and accessible medical experience. We are currently in the critical phase of preparing our mobile applications (iOS & Android) for the official live release.

    We are looking for a skilled Mobile Developer with strong Kotlin expertise and experience in Kotlin Multiplatform (KMP) to help us polish the functionality, ensure stability, and successfully launch the product.

     

    Does this relate to you?

    • KMP knowledge: Commercial experience with Kotlin Multiplatform Mobile OR a strong portfolio/pet projects with a deep understanding of KMP architecture.
    • iOS familiarity: You don’t need to be a Swift expert, but you must be comfortable opening Xcode, building the iOS project, debugging, and writing basic Swift wrappers if needed.
    • English is Upper-intermediate.
    • Experience in the Healthcare/Telehealth domain is nice to have.

       

    A new team member will be in charge of:

    • Develop and maintain shared business logic using Kotlin Multiplatform for both Android and iOS applications.
    • Implement and refine features for two distinct user roles: Patients (booking, consultations, history) and Doctors (schedule management, patient records).
    • Work with platform-specific code when necessary (Kotlin for Android, Swift for iOS) to ensure a native look and feel.
    • Collaborate with the backend team to integrate APIs and handle sensitive medical data securely.
    • Focus on quality: Fix bugs, optimize performance, and resolve UI/UX inconsistencies before the release.
    • Assist in the preparation and submission of apps to the App Store and Google Play.
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  • Β· 284 views Β· 31 applications Β· 6d

    Senior Frontend Engineer to $10000

    Full Remote Β· Countries of Europe or Ukraine Β· 7 years of experience Β· English - C1
    Metamindz is a fast-growing UK-based IT software company. We support global clients by providing fractional CTOs-as-a-service, building digital products, hiring exceptional technical talent, and conducting in-depth tech due diligence. We’re currently...

    Metamindz is a fast-growing UK-based IT software company. We support global clients by providing fractional CTOs-as-a-service, building digital products, hiring exceptional technical talent, and conducting in-depth tech due diligence.

     

    We’re currently looking for a Senior Frontend Engineer to join one of our clients in a long-term engagement. This is a full-time remote opportunity for a highly senior frontend engineer who can take ownership of frontend systems end to end and comfortably collaborate with backend services, without being expected to work deeply on backend implementation.

     

    This role is ideal for someone who enjoys ownership, product thinking, and building scalable, maintainable frontend systems used in real production environments, while having a solid understanding of how frontend applications interact with APIs and data layers.

     

    Responsibilities:
     

    • Architect, develop, and maintain complex frontend applications using React and TypeScript
    • Build scalable, reusable UI architectures within a monorepo setup
    • Work end-to-end on frontend features, from requirements and UI logic to API integration and production readiness
    • Collaborate closely with backend engineers, integrating with NestJS-based APIs and ensuring clean, well-typed contracts
    • Take ownership of frontend architecture, technical decisions, and long-term maintainability
    • Ensure high performance, accessibility, and responsiveness across applications
    • Improve frontend reliability through testing, code reviews, and best practices
    • Work closely with product managers and designers to translate requirements into high-quality user experiences
    • Contribute to shared tooling, libraries, and frontend standards within the monorepo
    • Write clean, readable, and well-structured code with a strong focus on quality and maintainability
       

    Requirements:
     

    • 7+ years of commercial engineering experience (senior-level only)
    • Expert-level knowledge of React and TypeScript
    • Strong understanding of modern frontend architecture, state management, and performance optimization
    • Experience working in monorepo environments (Nx, Turborepo, or similar)
    • Working knowledge of backend concepts, including APIs, data flows, and basic database interactions
    • Experience consuming and integrating with well-typed APIs (REST / GraphQL)
    • Strong sense of ownership and responsibility for delivering production-ready features
    • Ability to work independently in distributed, remote teams
    • Clear communication skills and a pragmatic, problem-solving mindset
       

    What We Offer:
     

    • Fully remote, flexible work culture with long-term stability
    • High-impact product work with modern technologies
    • Strong engineering standards and real technical ownership
    • Supportive, transparent team culture with no micromanagement

    Competitive monthly compensation, aligned with experience and contribution


    How to Apply:

     

    Please send a short blurb about yourself β€” and tell us your favorite ice cream flavor (mine is cherry πŸ’)


     

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  • Β· 44 views Β· 3 applications Β· 6d

    Information/System Security Engineer (Fintech)

    Full Remote Β· Worldwide Β· Product Β· 3 years of experience Β· English - B1
    Paycord is a PayTech company with a high-load platform for payment processing. We combine fintech expertise with merchant insights to create innovative solutions. We’ve successfully developed a strong product that helps businesses succeed in new...

    Paycord is a PayTech company with a high-load platform for payment processing. We combine fintech expertise with merchant insights to create innovative solutions. We’ve successfully developed a strong product that helps businesses succeed in new markets.

    Our primary focus is on solution-driven development, and we prioritize the needs of our business clients. We provide access to a wide range of local and international payment methods, supporting businesses in reaching new heights and achieving excellence.

    We`re rapidly growing and inviting an Information/System Security Engineer to our team.

    You would be running such tasks as:

    • Assess cybersecurity risks and develop measures to minimize them.
    • Implement and administer SOC tools, and integrate threat monitoring systems.
    • Manage vulnerabilities, respond to security incidents, analyze root causes, and mitigate attack impacts.
    • Handle identity protection and privileged access management.
    • Secure Windows, macOS, and Linux endpoints.
    • Ensure information and data protection.
    • Conduct cybersecurity awareness training and promote best security practices among staff.
    • Collaborate closely with Legal, HR, Business & Product Owners, DevOps, IT specialists, and development teams, providing expertise in information security matters.

    Required skills and expertise:

    • Higher education in Information Security or a related field (Computer Science, Software Engineering, Information Systems, etc.).
    • At least 3 years of experience in a similar position.
    • Strong understanding of user authentication principles, access control, and information resource management models.
    • Experience with OSINT tools and methodologies.
    • Hands-on experience with configuring and administering tools such as SIEM, EDR, SOAR, MISP, IDS/IPS.
    • Experience in securing server, network, and cloud infrastructures.
    • Familiarity with monitoring and logging systems.
    • Experience in scripting and automation.
    • Experience in Security Incident Response, ability to analyze and interpret data, and prepare reports based on incident investigation results.
    • Experience with IT audits and risk management processes.
    • Risk-oriented mindset with the ability to assess consequences and implement systemic improvements.
    • English level: Intermediate or higher (ability to read technical documentation and correspond in English).

    Will be a plus:

    • Relevant security certifications and training.

    We offer:
    Care for your health and well-being
    β€’ 100 % paid sick leaves;
    β€’ 20 working days of paid vacation;
    β€’ Medical support;
    β€’ Benefits Cafeteria (budget for gym/stomatology/psychological service & etc.);
    β€’ Ability to work remotely or in the office (as you wish);
    β€’ Corporate gifts & events.

    Professional growth & development
    β€’ Competitive salary with annual salary promotions;
    β€’ The annual budget for professional courses, conferences, workshops, and books;
    β€’ Internal training courses;
    β€’ Work with a team of professionals and have the opportunity to share knowledge.

    Corporate Culture
    β€’ Dynamic and result-oriented work environment;
    β€’ The ability to influence product development at an early stage;
    β€’ Openness to new ideas and approaches, healthy team discussions;
    β€’ No β€œred tape” culture.

    Candidate journey:
    HR Interview β€” Technical Interview β€” Final Interview

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  • Β· 185 views Β· 31 applications Β· 6d

    Product Owner (PM/BA, outsource)

    Full Remote Β· Worldwide Β· 3 years of experience Β· English - C1
    Job description About Fulcrum: We’re a team of tech-savvy, creative & passionate IT professionals. We’ve created a vibrant and performance-driven culture for ourselves where everyone is free to think & act outside the box. There are literally no limits to...

    Job description

    About Fulcrum: We’re a team of tech-savvy, creative & passionate IT professionals. We’ve created a vibrant and performance-driven culture for ourselves where everyone is free to think & act outside the box. There are literally no limits to what you can do here, as long as we WOW our clients and OVER deliver what we promise.

    We are now looking for Product Owner (full-time, remote) to join our team.

     

    Possible project types

    - Design projects: UX/UI design, branding, marketing materials.
    - Development projects: websites, web platforms, mobile apps, integrations.
    - Support project

     

    Key Responsibilities
     

    • Collect, analyze, and document business and functional requirements.
    • Create and maintain project documentation: Vision, Scope, User Stories, Acceptance Criteria, Use Cases, and User Flows.
    • Plan and oversee project execution in collaboration with designers, developers, and QA engineers.
    • Define, maintain, and prioritize the product backlog.
    • Lead client meetings, demos, retrospectives, and workshops.
    • Communicate effectively with internal and external stakeholders.
    • Ensure product delivery aligns with client business goals.
    • Analyze results, gather feedback, and suggest improvements to enhance the product.
    • Manage scope, time and budget


     

    Job requirements
     

    • English level Advanced (written and verbal)
    • Great communication skills
    • Min 1,5 -2 year of experience on Business Analyst / PO position in IT
    • Min 3 years as a PM
    • Strong understanding of software development lifecycle and Agile methodologies (Scrum or Scrumban in particular)
    • Excellent written and verbal communication skills including presentations
    • Experience in conducting Discovery stage (take product from an idea to development)
    • Requirements elicitation techniques: workshopping, document analysis, interviews
    • Requirements documentation through User Stories and SRS
    • Experience with mobile / web development in the Production
    • Experience in outsource IT company on multiple projects
    • Experience working in startups
    • Experience working with managing Design projects
    • Full cycle project ownership of budget

     

    Nice-to-have

     

    • Technical education \ Business education
    • Experience in pre-sales & upsales
    • Experience working with managing AI

     



     

    What we offer:

    - Flexible schedule & opportunity to work remotely or workspace in Kyiv (kooperativ.cc);
    - Friendly & open team who have fun creating cool projects together;
    - Opportunity to boost your professional & personal growth;
    - Regular team gathering activities;
    - 20 business days of paid vacation + UA national holidays;
    - Medical insurance full coverage;
    - 10 + 5 days paid sick leave;


     

    How we operate:

    - We promise dramatic professional growth & interesting work
    - Bring ideas that will change how Fulcrum operates, and you will receive our gratitude and rewards
    - Your opinion matters. Fulcrum is not a typical ’bureaucratic company, and our employees are our core value
    - Your compensation grows with your responsibility zone
    - If something doesn’t go smoothly or can be simplified, just let us know β€” you are welcome to do so
    - You have a say in everything we do, starting from the roadmap, creating requirements, sprint planning, etc.
    - If you feel that everything above is about you, get in touch. We’re always glad to welcome stubborn, enthusiastic, and result-oriented buddies to our team

    Are you interested in working with us?

    LET’S MOVE THE WORLD TOGETHER!

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  • Β· 20 views Β· 2 applications Β· 6d

    2D Animator (Spine)

    Full Remote Β· Worldwide Β· Product Β· 3 years of experience Β· English - B1
    About Strim Duo Strim Duo is a creative digital studio based in Limassol, Cyprus. We specialize in social game development, product engineering, UX/UI design, custom software solutions, mobile apps, and post-launch product support. Our mission is to build...

    About Strim Duo

    Strim Duo is a creative digital studio based in Limassol, Cyprus. We specialize in social game development, product engineering, UX/UI design, custom software solutions, mobile apps, and post-launch product support.
    Our mission is to build products that work seamlessly across devices, delivering engaging experiences for millions of users worldwide.

    What we’re looking for

    • Confident experience with Spine 2D: working with skins, constraints, animation sequences, mesh/weight setup, and creating pseudo-3D effects.
    • Adobe After Effects knowledge will be a nice advantage.
    • A current portfolio showcasing your animations.
    • Solid skills in Adobe Photoshop, including preparing, slicing, and adapting art for animation.
    • Strong understanding and practical use of animation principles.
    • Ability to work with references and draw the right conclusions from them.
       

    Your responsibilities

    • Collaborating closely with the team to integrate animations smoothly into the game.
    • Creating animations for characters and UI elements.

      Benefits
    • Flexible remote/hybrid work setup with a global team.
    • 21 days of annual paid vacation.
    • 12 paid sick days per year.
    • Health insurance coverage.
    • Performance-based bonuses and incentives.
    • Open communication with leadership and a culture that values your ideas.
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  • Β· 50 views Β· 5 applications Β· 6d

    Lead Data Engineer

    Full Remote Β· Countries of Europe or Ukraine Β· 7 years of experience Β· English - B2
    We are seeking a highly skilled Lead Data Engineer to design, develop, and optimize our Data Warehouse solutions. The ideal candidate will have extensive experience in ETL/ELT development, data modeling, and big data technologies, ensuring efficient data...

    We are seeking a highly skilled Lead Data Engineer to design, develop, and optimize our Data Warehouse solutions. The ideal candidate will have extensive experience in ETL/ELT development, data modeling, and big data technologies, ensuring efficient data processing and analytics. This role requires strong collaboration with Data Analysts, Data Scientists, and Business Stakeholders to drive data-driven decision-making.

     

    Does this relate to you?

    • 7+ years of experience in Data Engineering field
    • At least 1+ year of experience as Lead\Architect
    • Strong expertise in SQL and data modeling concepts.
    • Hands-on experience with Airflow.
    • Experience working with Redshift.
    • Proficiency in Python for data processing.
    • Strong understanding of data governance, security, and compliance.
    • Experience in implementing CI/CD pipelines for data workflows.
    • Ability to work independently and collaboratively in an agile environment.
    • Excellent problem-solving and analytical skills.

       

    A new team member will be in charge of:

    • Design, develop, and maintain scalable data warehouse solutions.
    • Build and optimize ETL/ELT pipelines for efficient data integration.
    • Design and implement data models to support analytical and reporting needs.
    • Ensure data integrity, quality, and security across all pipelines.
    • Optimize data performance and scalability using best practices.
    • Work with big data technologies such as Redshift.
    • Collaborate with cross-functional teams to understand business requirements and translate them into data solutions.
    • Implement CI/CD pipelines for data workflows.
    • Monitor, troubleshoot, and improve data processes and system performance.
    • Stay updated with industry trends and emerging technologies in data engineering.

       

    Already looks interesting? Awesome! Check out the benefits prepared for you:

    • Regular performance reviews, including remuneration
    • Up to 25 paid days off per year for well-being
    • Flexible cooperation hours with work-from-home
    • Fully paid English classes with an in-house teacher
    • Perks on special occasions such as birthdays, marriage, childbirth
    • Referral program implying attractive bonuses
    • External & internal training and IT certifications
    More
  • Β· 380 views Β· 110 applications Β· 6d

    Front-End Developer (Vue.js)

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 2 years of experience Β· English - B1
    We are looking for a Front-End Developer. You will work with a professional and experienced team on an exciting and complex project using Vue 3, Vite, and modern web technologies. The project follows Clean Architecture principles and includes CI/CD...

    We are looking for a Front-End Developer. You will work with a professional and experienced team on an exciting and complex project using Vue 3, Vite, and modern web technologies. The project follows Clean Architecture principles and includes CI/CD pipelines, Sentry for error tracking, automated testing (Unit and Integration), and Storybook for component documentation and development. You will have the opportunity to shape front-end architecture, improve performance, and collaborate closely with cross-functional teams to deliver a seamless user experience.


    About the product: It is a global streaming platform where users can find interesting streamers, send messages, and chat via video. Our mission is to help people overcome loneliness and boredom by creating a space for real-time interaction and positive emotions. With high-quality video streaming, 24/7 live events, and seamless online chats, we ensure a top-notch user experience without any ads. Our team is growing, with exciting opportunities to influence the product and tackle complex challenges, including AI integration and data-driven tasks. Our goal is to reach the top 5 streaming products
     

    In this role, you will

    • Develop and maintain high-quality, scalable front-end solutions using Vue 3 and Vite
    • Collaborate with designers, back-end developers, and product managers to implement new features and enhance user experience
    • Work closely with Android and iOS teams to ensure seamless integration of front-end components with mobile applications
    • Ensure code quality by writing unit and integration tests and actively participating in code reviews
    • Document components and features in Storybook, maintaining clear and up-to-date usage examples
    • Optimize application performance and contribute to improving overall front-end architecture
    • Troubleshoot and resolve issues promptly, ensuring application stability and reliability
    • Participate in team discussions, proposing and implementing innovative solutions and improvements
       

    It’s all about you

    • 2+  year of experience in front-end development 
    • Proficiency in HTML5, CSS3, JavaScript
    • Hands-on experience with Vue 3(1+ year), including Router and Pinia, REST API
    • Experience writing and maintaining unit and integration tests
    • Excellent collaboration and communication abilities
    • Ability to adapt and learn quickly in a dynamic environment
    • Intermediate English or higher

     

    Would be a plus

    • Experience with Storybook for component documentation and development
    • Experience working with modern tools and technologies (e.g., Vite, Vuetify)
    • Experience with SASS or SCSS and BEM methodology


    What we offer
    Care and support: 

    • 20 paid vacation days, 15 sick days, and 6 additional days off for family events
    • 100% medical insurance coverage
    • Sports and equipment reimbursement
    • Team building events, corporate gifts, and stylish merch
    • Financial and legal support
    • Position retention and support for those who join the Armed Forces of Ukraine
    • Participation in social initiatives supporting Ukraine

    Comfortable working environment:

    • Work from our Kyiv hub or remotely with a flexible schedule 
    • Modern equipment or depreciation of your own tools

    Investment in your future:

    • Collaborate with a highly-skilled team of Middle & Senior professionals, sharing practical cases and expertise in the social networking niche
    • 70% of our heads and leads have grown into their roles here – so can you!
    • Performance-oriented reviews and Individual Development Plans (IDPs)
    • Reimbursement for professional courses and English classes
    • Corporate library, book club, and knowledge-sharing events
       

    Hiring process

    • Intro call
    • Tech Interview
    • Final Interview
    • Reference check
    • Offer

       
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  • Β· 13 views Β· 1 application Β· 6d

    Senior ML Engineer

    Hybrid Remote Β· EU Β· Product Β· 5 years of experience Β· English - None
    We are looking for a Senior ML Engineer to join a product mobile gamedev company ranked in the TOP-10 gaming companies worldwide by App Store installs, with 2B+ installs across its portfolio. This is a highly data-driven role focused on production ML...

    We are looking for a Senior ML Engineer to join a product mobile gamedev company ranked in the TOP-10 gaming companies worldwide by App Store installs, with 2B+ installs across its portfolio.
     

    This is a highly data-driven role focused on production ML models for LTV, churn, user segmentation and personalization, directly impacting core business metrics.
     

    What you will do:

    • Develop and improve production ML models (LTV / churn / segmentation / anomaly detection)
    • Work with large-scale data from multiple sources
    • Deploy, monitor and automate ML models in production
    • Analyze model accuracy and performance, propose improvements
    • Build personalization algorithms for in-game experience
    • Collaborate closely with UA, Monetization and Analytics teams
       

    Must-have:

    • 5+ years of experience with Python
    • Strong experience with Pandas, Scikit-learn, PyTorch
    • Strong SQL (complex queries, large datasets)
    • Proven experience in developing and deploying production-ready ML models for LTV / churn prediction, including the full ML lifecycle (deployment, monitoring, automation)
    • Hands-on experience with production ML systems
    • Experience with Docker, APIs, CI/CD
    • Degree in Computer Science, Mathematics or related field
       

    Nice to have:

    • Experience with mobile games
    • Experience with AdTech / marketing ML
    • Experience with BI tools
       

    Team & setup

    • Mature Data Science & ML team (17+ people)
    • Strong analytics & ML culture
    • Distributed, Russian-speaking team
    • Democratic values and healthy work environment

     

    What the company offers:

    • Relocation to Cyprus or Poland (company-supported)
    • 24 paid days off (incl. sick leave)
    • Medical insurance
    • Conferences & learning budget
    • Team buildings

       

    Interview process

    1. Recruiter call (40 min)
    2. Technical interview (1.5 h)
    3. HR interview
    More
  • Β· 117 views Β· 25 applications Β· 6d

    Backend Tech Lead

    Full Remote Β· Worldwide Β· Product Β· 3 years of experience Β· English - B1
    We’re looking for a Backend Tech Lead to lead one of our core engineering teams working on critical crypto operations. This role combines technical leadership, delivery ownership, and hands-on backend engineering in a correctness-critical...

       We’re looking for a Backend Tech Lead to lead one of our core engineering teams working on critical crypto operations.
       This role combines technical leadership, delivery ownership, and hands-on backend engineering in a correctness-critical environment.

    You’ll work close to the product and infrastructure backbone of the exchange, where reliability, predictability, and engineering judgment matter more than buzzwords.

    What you’ll do

    • Lead a backend team: set clear goals, run regular 1:1s, give feedback, and support hiring and team growth
    • Own delivery end-to-end: planning, prioritization, execution, and delivery transparency
    • Take responsibility for backend architecture of core operational flows and integrations
    • Drive evolution of existing systems toward a more scalable and maintainable architecture
    • Ensure correctness and reliability of critical backend processes
    • Stay hands-on where it matters: design APIs, review code, and contribute to core backend logic (Go)
    • Support and gradually improve legacy components where required

    Requirements

    • 3+ years in a Tech Lead / Team Lead / Engineering Lead role with real ownership of delivery
    • Strong backend engineering experience with Go in production environments
    • Experience working with high-load or correctness-critical systems
    • Solid understanding of distributed systems and failure scenarios
    • Practical experience working with monoliths and evolving them over time
    • Strong delivery mindset: prioritization, clear communication, ownership of outcomes
    • Engineering best practices: clean APIs, testing, CI/CD, observability
    • Ability to work pragmatically with legacy codebases (including PHP when needed)
    • Reliability and security-first mindset

    Nice to have

    • Experience in crypto, fintech, or financial infrastructure
    • Familiarity with wallets, transactions, or ledger-like systems
    • Experience with incident response or on-call rotations
    • Exposure to risk controls, monitoring, or antifraud systems

    Perks of being a part of EXMO πŸ™Œ

    Crypto teaches flexibility β€” so we focus on real, practical benefits instead of clichΓ©s.

    • Competitive salary
    • Flexibility to work fully remote or from a comfortable coworking β€” your choice
    • Reimbursement for English lessons and sports activities
    • 100% sick leave coverage
    • 30 business days of unified leave per year + 2 public holidays for all team members
      A friendly team that is genuinely happy to welcome a new teammate πŸ˜‰

     

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  • Β· 415 views Β· 114 applications Β· 6d

    Node.js Developer to $8000

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 3 years of experience Β· English - None
    Company: OwchBuddy Format: Remote What You’ll Do Design, develop, and maintain backend services using Node.js Work with MongoDB and Redis to ensure efficient data storage and caching Build and manage containerized applications with Docker Deploy...

     

    Company: OwchBuddy
    Format:  Remote 

     

    πŸ’» What You’ll Do

    • Design, develop, and maintain backend services using Node.js
    • Work with MongoDB and Redis to ensure efficient data storage and caching
    • Build and manage containerized applications with Docker
    • Deploy and scale applications in Google Cloud Platform (GCP)
    • Collaborate closely with frontend engineers, DevOps, and product managers to deliver high-quality features
    • Ensure system performance, security, and reliability
    • Write clean, maintainable, and testable code

     

    🧠 What We’re Looking For

    • Strong experience with Node.js and modern backend architectures
    • Solid understanding of MongoDB and in-memory data stores like Redis
    • Hands-on experience with Docker and containerized environments
    • Experience deploying applications to GCP
    • Understanding of REST APIs, microservices, and scalable systems
    • Familiarity with CI/CD pipelines and DevOps practices
    • Strong problem-solving skills and attention to detail
    • Good communication skills and ability to work in a distributed team

     

    ⭐ Nice to Have

    • Experience with Kubernetes
    • Knowledge of event-driven architectures
    • Experience in healthtech / wellbeing / mobile-first products

     

    🎯 What You’ll Get

    • Opportunity to work on a meaningful product that improves people’s lives
    • A strong engineering culture focused on quality and ownership
    • Flexible work environment
    • Competitive compensation based on experience

     

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  • Β· 74 views Β· 10 applications Β· 6d

    Senior DevOps Engineer (Blockchain)

    Full Remote Β· EU Β· 6 years of experience Β· English - B2
    Vacancy Description Our platform is a secure, scalable cryptocurrency payment gateway designed to facilitate seamless cryptocurrency deposits, conversions, and fiat withdrawals. It provides a user-friendly and efficient experience for both individual...

    Vacancy Description


    Our platform is a secure, scalable cryptocurrency payment gateway designed to facilitate seamless cryptocurrency deposits, conversions, and fiat withdrawals. It provides a user-friendly and efficient experience for both individual users and businesses, ensuring smooth and transparent transactions.

     

    Requirements

    • 5+ years of professional DevOps or infrastructure experience, including leadership or mentorship roles.
    • Hands-on experience with Web3/Blockchain projects and related infrastructure
    • Deep expertise in at least one major cloud provider (AWS preferred) and familiarity with others.
    • Strong hands-on experience with Terraform or CloudFormation.
    • Proven production-grade Kubernetes experience: cluster provisioning (EKS, GKE, AKS), Helm charts, Operators.
    • Design, implementation, and maintenance of CI/CD pipelines using GitLab CI (preferred), Argo CD, or similar tools.
    • Proficiency in scripting languages for automation and custom tooling.
    • Knowledge of secrets management (Vault, AWS Secrets Manager, Azure Key Vault).
    • Solid understanding of TCP/IP, DNS, load balancing, CDN integration, and network security concepts.
    • Experience designing storage strategies (block/object), backup, restore, and Disaster Recovery planning.
    • Hands-on experience deploying and scaling relational (PostgreSQL, MySQL) and NoSQL (MongoDB, Cassandra) databases.
    • Familiarity with cache systems (Redis, Memcached) and message queues (RabbitMQ, Kafka).
    • Ability to intervene in operational matters and assist the team directly when necessary.
    • Excellent communication and collaboration skills with cross-functional stakeholders.
    • High attention to detail, reliability, and ability to meet deadlines in a fast-paced environment.
    • Capability to identify risks early, communicate options clearly, and drive timely mitigation.
    • Be on time, prepared, and reliable for meetings, handoffs, and releases.
    • English skills at least Upper-intermediate.

       

    Would be a plus

    • Experience with enclaves and secure environments (SGX, Nitro Enclaves or similar)
    • Strong consultative skills: ability to translate client business goals into technical requirements and actionable roadmaps.
    • Comfort working with multiple concurrent client projects, balancing competing priorities, and triaging incidents.
    • Exceptional verbal and written communication: present technical solutions, write clear documentation, and lead regular status meetings with both technical and non-technical stakeholders.
    • Passion for upskilling team members: conduct workshops on new tools (e.g., migrating on-premise workloads to Kubernetes) or share best practices for secure coding and infrastructure hardening.
    • Understanding of more complex blockchain-related terms and concepts (rollups, smart-contracts, consensus, etc.)

       

    Responsibilities

    • Define and maintain a unified DevOps roadmap aligned with both company standards and client business objectives.
    • Continuously evaluate new tools, platforms, and best practices to improve delivery speed, reliability, and security.
    • Architect and implement CI/CD pipelines for diverse technology stacks (microservices, monoliths, serverless).
    • Develop and maintain Infrastructure-as-Code (IaC) modules (Terraform, CloudFormation) for reproducible environments.
    • Oversee container orchestration (Kubernetes, Docker Swarm) and related tooling (Helm, Istio, Argo CD).
    • Define and enforce network, storage, and compute configurations to meet scalability and high-availability requirements.
    • Evaluate, select, and integrate monitoring, logging, and alerting solutions (Prometheus, Grafana, ELK).
    • Supervise and mentor a distributed DevOps team, guiding them through technical challenges.
    • Establish best practices for peer reviews, knowledge sharing, and continuous learning.
    • Coordinate with project managers, QA, security, and development leads to ensure cross-functional alignment.
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  • Β· 129 views Β· 10 applications Β· 6d

    Middle Data Scientist (Operations Digital Twin)

    Full Remote Β· Worldwide Β· Product Β· 2 years of experience Β· English - B2 Ukrainian Product πŸ‡ΊπŸ‡¦
    About us Fozzy Group is one of the largest trade industrial groups in Ukraine and one of the leading Ukrainian retailers, with over 700 outlets all around the country. It is also engaged in e-commerce, food processing & production, agricultural...

    About us
     

    Fozzy Group is one of the largest trade industrial groups in Ukraine and one of the leading Ukrainian retailers,

    with over 700 outlets all around the country. It is also engaged in e-commerce, food processing & production,

    agricultural business, parcel delivery, logistics and banking. 

    Since its inception in 1997, Fozzy Group has focused on making innovative business improvements, creating

    new opportunities for the market and further developing the industry as a whole.
     

    Job Description:
     

    The Foodtech team is looking for a Data Scientist to develop the Operational Analytics function for a fast[1]growing food delivery business. In this role, you will focus on time series forecasting, regression modeling,

    simulation modeling, and end-to-end machine learning pipelines to support resource planning and

    operational decision-making.

    You will be responsible for developing simulation-based models that serve as a foundation for a digital twin

    of operational processes, enabling scenario analysis, stress testing, and what-if simulations for capacity

    planning and operational optimization.

    You will work closely with product, engineering, and operations teams to transform data into measurable

    business impact through production-ready ML and simulation solutions.
     

    Job Responsibilities
     

    β€’ Develop and implement time series forecasting models for resource planning (demand, capacity,

    couriers, delivery slots, operational load);

    β€’ Build regression and machine learning models to explain key drivers and support operational

    decisions;

    β€’ Apply a wide range of time series approaches from classical models (SARIMA, ETS, Prophet) and

    ML models (GB) to modern Deep Learning models (LSTM, Temporal CNNs, Transformers for TS);

    β€’ Design, build, and maintain end-to-end automated ML pipelines, deploy and operate models in

    production using AWS SageMaker;

    β€’ Orchestrate training and inference workflows with Apache Airflow;

    β€’ Analyze large-scale operational datasets and convert results into insights, forecasts, and actionable

    recommendations;

    β€’ Collaborate with product managers, engineers, and operations teams to define business problems

    and validate analytical solutions;

    β€’ Monitor model performance, forecast stability, and business impact over time.
     

    Requirements
     

    β€’ Bachelor’s Degree in Mathematics / Engineering / Computer Sciences / Quantitative Economics /

    Econometrics;

    β€’ Strong mathematical background in Linear algebra, Probability, Statistics & Optimization Techniques;

    β€’ At least 2 years working experience on Data Science;

    β€’ Experience of the full cycle of model implementation (data collection, model training and evaluation,

    model deployment and monitoring);

    β€’ Ability to work independently, proactively, and to decompose complex problems into actionable tasks.
     

    Skills

    Must Have
     

    β€’ Strong proficiency in Python with solid application of object-oriented programming (OOP) principles

    (modular design, reusable components, maintainable code);

    β€’ Solid experience in time series forecasting and regression modeling;

    β€’ Practical knowledge of:

    o Classical and ML forecasting techniques;

    o Statistical methods (hypothesis testing, confidence intervals, A/B testing);

    β€’ Advanced SQL skills (window functions, complex queries);

    β€’ Experience building automated ML pipelines;

    β€’ Understanding of MLOps principles (model versioning, monitoring, CI/CD for ML).
     

    Preferred
     

    β€’ Hands-on experience with AWS SageMaker (training jobs, endpoints, model registry);

    β€’ Experience with Apache Airflow for data and ML workflow orchestration;

    β€’ Knowledge of Reporting and Business Intelligence Software (Power BI, Tableau);

    β€’ Experience working with large-scale production data systems.
     

    What We Offer
     

    β€’ Competitive salary;

    β€’ Professional & personal development opportunities;

    β€’ Being part of dynamic team of young & ambitious professionals;

    β€’ Corporate discounts for sport clubs and language courses;

    β€’ Medical insurance package

    More
  • Β· 115 views Β· 40 applications Β· 6d

    Middle DevOps Engineer

    Full Remote Β· Countries of Europe or Ukraine Β· 4 years of experience Β· English - B2
    This project focuses on the full-scale launch of a new stablecoin, including the development of the token’s smart contract and the build-out of the platforms necessary for its operation, lifecycle management, and secure distribution. Requirements 4+...

    This project focuses on the full-scale launch of a new stablecoin, including the development of the token’s smart contract and the build-out of the platforms necessary for its operation, lifecycle management, and secure distribution.

     

    Requirements

     

    • 4+ years of professional DevOps or infrastructure experience.
    • Deep expertise in at least one major cloud provider (Azure preferred) and familiarity with others.
    • Strong hands-on experience with Terraform or other IaaC tools.
    • Proven production-grade Kubernetes experience: cluster provisioning (EKS, GKE, AKS), Helm charts, Operators.
    • Design, implementation, and maintenance of CI/CD pipelines using GitLab CI (preferred), Argo CD, or similar tools.
    • Proficiency in scripting languages for automation and custom tooling.
    • Hands-on experience deploying and scaling relational (PostgreSQL, MySQL) and NoSQL (MongoDB, Cassandra) databases.
    • Proficiency with networking and complex networking setups
    • Familiarity with cache systems (Redis, Memcached) and message queues (RabbitMQ, Kafka).
    • Excellent communication and collaboration skills with cross-functional stakeholders.
    • High attention to detail, reliability, and ability to meet deadlines in a fast-paced environment.
    • Capability to identify risks early, communicate options clearly, and drive timely mitigation.
    • Be on time, prepared, and reliable for meetings, handoffs, and releases.
    • English skills at least Upper-intermediate.

     

    Will be a plus

     

    • Experience with enclaves and secure environments (SGX, Nitro Enclaves or similar)
    • Strong consultative skills: ability to translate client business goals into technical requirements and actionable roadmaps.
    • Exceptional verbal and written communication
    • Hands-on experience with Web3/Blockchain projects and related infrastructure
    • Experience with security tooling and security processes

     

    Responsibilities  

     

    • Continuously evaluate new tools, platforms, and best practices to improve delivery speed, reliability, and security.
    • Develop and maintain Infrastructure-as-Code (IaC) modules (Terraform, CloudFormation) for reproducible environments.
    • Oversee container orchestration (Kubernetes, Docker Swarm) and related tooling (Helm, Istio, Argo CD).
    • Define and enforce network, storage, and compute configurations to meet scalability and high-availability requirements.
    • Evaluate, select, and integrate monitoring, logging, and alerting solutions (Prometheus, Grafana, ELK).
    • Coordinate with project managers, QA, security, and development leads to ensure cross-functional alignment.
    More
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